51R/67R Inv Calculated Ground Fault Protection - Eaton EDR-5000 Nstallation, Operation And Maintenance Manual

51R/67R INV Calculated Ground Fault Protection

Elements
51R[1] ,51R[2]
The following table shows the application options of the earth overcurrent protection element
Applications of the IG-Protection Module
ANSI 51R – Ground overcurrent protection,
non-directional
ANSI 67R – Ground overcurrent protection,
directional
*1 =for wiring see chapter "Connection Examples / VT Wye with Broken Delta"
Criterion
For all protection elements it can be determined, whether the measurement is done on basis of the » Fundamental« or if
» TrueRMS« measurement is used.
VX Selection
Within the parameter menu, this parameter determines, whether the earth current and the residual voltage is
» measured« or » calculated« .
All ground current elements are identically structured.
Calculation is only possible, when phase to neutral voltage is applied to the
voltage inputs.
At setting » measured« the quantities to be measured, i. e. Residual voltage
and the measured ground current have to be applied to the corresponding
4 th measuring input.
EDR-5000
Setting in
Device Planning menu
Setting: Non-directional
Device Planning menu
Setting: Forward/Reverse
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Option
Measuring Mode:
Fundamental/TrueRMS
Measuring Mode:
Fundamental/TrueRMS
VX Selection: measured
IM02602007E
/calculated
*1
520